Heating device



Cross reference is made to copending U.S. design patent application Ser. No. 29/606,416 entitled “Heating Device” by Fritz et al. filed on even date herewith; U.S. design patent application Ser. No. 29/606,417 entitled “Heating Device” by Fritz et al. filed on even date herewith; and U.S. design patent application Ser. No. 29/606,419 entitled “Heating Device” by Fritz et al. filed on even date herewith.

FIG. 1 is a perspective view of a heating device showing our new design;

FIG. 2 is a front elevational view of the heating device of FIG. 1;

FIG. 3 is a rear elevational view of the heating device of FIG. 1;

FIG. 4 is a left side elevational view of the heating device of FIG. 1;

FIG. 5 is a right side elevational view of the heating device of FIG. 1;

FIG. 6 is a top plan view of the heating device of FIG. 1; and,

FIG. 7 is a bottom plan view of the heating device of FIG. 1.

The broken lines shown in the drawings illustrate portions of the heating device that form no part of the claimed design. 

CLAIM The ornamental design for a heating device, as shown and described. 